K40 Radar & Laser System Custom-Installed at your home or office! K40 Radar & Laser System Custom-Installed at your home or office! Now you can have an expert, veteran installer perform a custom installation of the latest K40 RL360i and K40 Laser Defuser (laser jammer) at your home or office. I have installed hundreds of these systems, and I buy on a just-in-time system - you always get the latest version. I am perfectly happy working ... 10/5/2016 ~ Charlotte, North Carolina ~ 1.5 mi.